ComposableMutablePropertyProtocol
public protocol ComposableMutablePropertyProtocol : MutablePropertyProtocol Represents a mutable property that can be safety composed by exposing its synchronization mechanic through the defined closure-based interface.
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Atomically performs an arbitrary action using the current value of the variable.
Declaration
Swift
func withValue<Result>(_ action: (Value) throws -> Result) rethrows -> ResultParameters
actionA closure that accepts current property value.
Return Value
the result of the action.
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Atomically modifies the variable.
Declaration
Swift
func modify<Result>(_ action: (inout Value) throws -> Result) rethrows -> ResultParameters
actionA closure that accepts old property value and returns a new property value.
Return Value
The result of the action.